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Filename : rrdflushcached.pod
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=head1 NAME

rrdflushcached - Flush the values for a specific RRD file from memory.

=head1 SYNOPSIS

B<rrdtool> B<flushcached>
S<[B<--daemon>|B<-d> I<address>]>
I<filename> [I<filename> ...]

=head1 DESCRIPTION

The B<flushcached> function connects to L<rrdcached>, the RRD caching daemon,
and issues a "flush" command for the given files. The daemon will put the
files to the head of the update queue so they are written "soon". The
status will be returned only after the files' pending updates have been
written to disk.

=over 8

=item I<filename>

The name(s) of the B<RRD> file(s) that are to be written to disk.

=item B<--daemon>|B<-d> I<address>

Address of the L<rrdcached> daemon. If not specified, the
RRDCACHED_ADDRESS environment variable must be set (see below).  For a
list of accepted formats, see the B<-l> option in the L<rrdcached>
manual.

 rrdtool flushcached --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd

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=head1 ENVIRONMENT VARIABLES

The following environment variables may be used to change the behavior of
C<rrdtoolE<nbsp>flushcached>:

=over 4

=item B<RRDCACHED_ADDRESS>

If this environment variable is set it will have the same effect as specifying
the C<--daemon> option on the command line. If both are present, the command
line argument takes precedence.

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=head1 AUTHOR

Florian Forster E<lt>octoE<nbsp>atE<nbsp>verplant.orgE<gt>